ncdfFlow (version 2.18.0)

ncfsApply,ncdfFlowSet-method: apply method for ncdfFlowSet (for internal use)

Description

It is equivalent to fsApply. But the latter could cause memory issue when FUN returns a flowFrame. ncdfApply writes to a new cdf file instead of memory. Thus it will return a ncdfFlowSet object.

Usage

"ncfsApply"(x, FUN, ..., use.exprs = FALSE, ncdfFile = NULL)

Arguments

x

ncdfFlowSet

FUN

function to apply

...

other arguments to pass to FUN

use.exprs

logical see fsApply

ncdfFile

logical wether to create a new hdf file or simply overwrite the existing file.

Details

When the function given by argument "FUN" does not return the entire flowFrame object with the same size of the original one (such as compensate,transform...), fsApply should be used instead.

Examples

data(GvHD)
nc <- ncdfFlowSet(GvHD[1:2])

#use fsApply when FUN does not return a flowFrame
fsApply(nc, nrow)
fsApply(nc, range)

#use ncfsApply when FUN returns a flowFrame
lgcl <- logicleTransform( w = 0.5, t= 10000, m =4.5)
translist <- transformList(c("FL1-H", "FL2-H"), lgcl)
nc1 <- ncfsApply(nc, transform, translist)